Is it really possible to bounce back into your pre-baby body a week after having twins, like Angelina Jolie? Do stars really starve themselves for a month before big events like Megan Fox "joked" about doing at the Golden Globes? How do tabloids "estimate" stars' weights, anyway?

These stars claim to have totally transformed their bodies...but can regular gals like us do it, too, and, most importantly is it healthy?

Share your burning celebrity health and body questions in the comments section--we'll ask insiders and medical experts and the answers may wind up in an upcoming issue of Glamour!